DE202010015348U1 - nerve electrode - Google Patents
nerve electrode Download PDFInfo
- Publication number
- DE202010015348U1 DE202010015348U1 DE202010015348U DE202010015348U DE202010015348U1 DE 202010015348 U1 DE202010015348 U1 DE 202010015348U1 DE 202010015348 U DE202010015348 U DE 202010015348U DE 202010015348 U DE202010015348 U DE 202010015348U DE 202010015348 U1 DE202010015348 U1 DE 202010015348U1
- Authority
- DE
- Germany
- Prior art keywords
- electrode
- nerve
- shaft
- electrode according
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000005036 nerve Anatomy 0.000 title claims description 8
- 238000001356 surgical procedure Methods 0.000 claims abstract description 6
- 210000001519 tissue Anatomy 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 claims abstract description 3
- 210000000944 nerve tissue Anatomy 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims description 8
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 208000028389 Nerve injury Diseases 0.000 description 1
- 239000000560 biocompatible material Substances 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000008764 nerve damage Effects 0.000 description 1
- 210000004126 nerve fiber Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/388—Nerve conduction study, e.g. detecting action potential of peripheral nerves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/0551—Spinal or peripheral nerve electrodes
- A61N1/0558—Anchoring or fixation means therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/41—Detecting, measuring or recording for evaluating the immune or lymphatic systems
- A61B5/414—Evaluating particular organs or parts of the immune or lymphatic systems
- A61B5/415—Evaluating particular organs or parts of the immune or lymphatic systems the glands, e.g. tonsils, adenoids or thymus
Abstract
Die Erfindung betrifft eine bipolare Elektrode zur kontinuierlichen intraoperativen Überwachung von Nervengewebe bei chirurgischen Eingriffen
dadurch gekennzeichnet:
dass die Fixierung der Elektrode im Gewebe durch eine Schraubwendel (3), die gleichzeitig Anode ist, erfolgt.The invention relates to a bipolar electrode for continuous intraoperative monitoring of nerve tissue during surgical procedures
characterized:
in that the fixation of the electrode in the tissue takes place by means of a helical coil (3), which is at the same time anode.
Description
Die Erfindung:The invention:
Die Erfindung betrifft eine bipolare Elektrode zur kontinuierlichen intraoperativen Überwachung von Nervengewebe bei chirurgischen Eingriffen.The invention relates to a bipolar electrode for continuous intraoperative monitoring of nerve tissue during surgical procedures.
Wie wurde das Problem bisher gelöst:How has the problem been solved so far:
Bei chirurgischen Eingriffen lassen sich Nervenfasern von kleinen Blutgefäßen oder Bindegewebe nur schwer unterscheiden. Komplikationen in Form von Nervenschädigungen können für den Patienten daher lebensbedrohliche Folgen haben. Die Nerven werden dazu mit einer Elektrode elektrisch stimuliert und die Stimulationsantwort am Zielorgan (Muskel) mit Elektroden abgeleitet. Letztere Elektroden sollten für die jeweilige Beurteilung ein zuverlässiges artefaktfreies Signal liefern. Die bisher verwendeten Nadelelektroden zeigen oft erhebliche Schwankungen im Signalverhalten am Zielort, da sie während des operativen Eingriffs mechanisch bewegt werden.In surgical procedures, it is difficult to distinguish nerve fibers from small blood vessels or connective tissue. Complications in the form of nerve damage can therefore have life-threatening consequences for the patient. The nerves are electrically stimulated with an electrode and the stimulation response at the target organ (muscle) is derived with electrodes. The latter electrodes should provide a reliable artifact-free signal for each assessment. The needle electrodes used hitherto often show considerable fluctuations in the signal behavior at the target site, since they are moved mechanically during the surgical procedure.
Lösungsweg/Beschreibung der Erfindung:Solution / description of the invention:
Es besteht daher die Aufgabe eine Elektrode der eingangs genannten Art zu entwickeln, die bei einfacher Fixierung ein stabiles Signal am Zielort liefert.It is therefore an object to develop an electrode of the type mentioned, which provides a stable signal at the destination with simple fixation.
Für die Fixierung der Elektrode kann eine kurze Schraubwendel verwendet werden, in die elektrisch isoliert eine Metallspitze vom ca. 2–5 mm integriert ist. Bei dieser bipolaren Anordnung bildet die Wendel die Anode, während die Spitze die Katode darstellt. Als Zuleitung wird für die Anode kann eine Metallwendel verwendet werden, während für die Kathode beispielsweise eine im Innenlumen der Wendel isolierte hochflexible Edelstahllitze benutzt wird. Als Isolation der gesamten Elektrode kann ein Schlauch aus Silikon, Polyurethan oder jeder andere biokompatible Werkstoff verwendet werden. Da die Messung von einer außerhalb des sterilen OP-Bereiches vorgenommen wird, wurde besonders auf die stabile Fixierung der eigentlichen Elektrode Wert gelegt, um bei Bewegungen oder Manipulationen die dadurch möglichen Signalstörungen auf ein Minimum zu reduzieren.For fixing the electrode, a short helical coil can be used, in the electrically isolated a metal tip of about 2-5 mm is integrated. In this bipolar arrangement, the helix forms the anode, while the tip represents the cathode. As the lead, a metal coil can be used for the anode, while for the cathode, for example, a highly flexible stainless steel strand insulated in the inner lumen of the coil is used. As insulation of the entire electrode, a tube of silicone, polyurethane or any other biocompatible material can be used. Since the measurement is made from outside the sterile surgical area, particular emphasis was placed on the stable fixation of the actual electrode, in order to minimize the possible signal interference during movements or manipulations to a minimum.
Welche Vorteile haben die technischen MerkmaleWhat are the advantages of the technical features?
Der wichtigste Vorteil dieser Erfindung liegt darin, dass einfach und zuverlässig eine bipolare Elektrode im Körper des Patienten, z. B. während einer Operation an der Schilddrüse, fixiert werden kann und die Signale störungsfrei registriert werden können.The most important advantage of this invention is that simply and reliably a bipolar electrode in the body of the patient, for. B. during surgery on the thyroid gland, can be fixed and the signals can be registered trouble-free.
Darstellung der AbbildungenPresentation of the pictures
Weitere Einzelheiten, Merkmale und Vorteile der Erfindung lassen sich im folgenden Beschreibungsteil entnehmen, in dem anhand der Zeichnungen und Ausführungsbeispiele die Erfindung näher erläutert wird. Sie zeigen in schematischer Darstellung inFurther details, features and advantages of the invention can be taken in the following description part, in which reference to the drawings and embodiments, the invention is explained in more detail. They show in a schematic representation in
Beschreibung der Abbildungen:Description of the pictures:
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202010015348U DE202010015348U1 (en) | 2010-11-15 | 2010-11-15 | nerve electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202010015348U DE202010015348U1 (en) | 2010-11-15 | 2010-11-15 | nerve electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE202010015348U1 true DE202010015348U1 (en) | 2011-03-03 |
Family
ID=43706012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE202010015348U Expired - Lifetime DE202010015348U1 (en) | 2010-11-15 | 2010-11-15 | nerve electrode |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE202010015348U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2703038A1 (en) * | 2012-08-27 | 2014-03-05 | Peter Osypka Stiftung | Electrode assembly with a feed line presenting three channels and with a positioning and fixation device |
-
2010
- 2010-11-15 DE DE202010015348U patent/DE202010015348U1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2703038A1 (en) * | 2012-08-27 | 2014-03-05 | Peter Osypka Stiftung | Electrode assembly with a feed line presenting three channels and with a positioning and fixation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 20110407 |
|
| R163 | Identified publications notified |
Effective date: 20110901 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20140305 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years | ||
| R158 | Lapse of ip right after 8 years |